Anyone want to joint with our solution for smart Agricuture

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1

Hello everybody.

We are developing some solution for agriculture base on Atmega 2560. Our solution target is:

  • online monitoring for agriculture environment: water, air, soil moitoring.
  • Auto switch on/of for greenhouse system, water system.
  • Camera control.
  • some agriculture support as diary, farm management, crop management....

Now we finish the first version include the center software for collect, monitor, control all information in the system by PC or mobile. But we have some problem with sensor field and need some help or coorporation from all of you. Please let me know if you have product or know any product that can help me solve our problem. All sensor we try now come from china and i think it can not working in along time in the farm.

  1. Sensor for air:
  • Humidity and temperature: I use SHT10 and now it is ok.
  • Light: i use BH1750 in testing mode.
  • Co2 not have product
  • Rain sensor not have product
  1. Water
  • flow sensor: not static
  • PH: it can measurement but not static, variant from 6.8-7.3
  • EC sensor not have good price product.
  1. Soil sensor
  • EC sensor for soil: not have product
  • Humidity sensor for soil : we try to product a sensor made from 2 rod of copper, but it can not working in along time.

All sensor here i need is online sensor not tester sensor.

This solution I think it is very importance not for my country. So If you interested in this product you can joint and share your experience, your product and working with my team to finish it. You also can joint as investment.

Thanks for your stay here to see my message.

My email quangduc191@gmail.com adn skype quangduc191.

2

This guy put a lot of work into designing a reliable DIY soil moisture sensor:

The project won the Best Product award in the 2015 Hackaday Prize.

3

Hello.

Anybody can let me know which type of gypsum. I try with my gypsum but it keep water in along time so it can not work exactly.

4

The hackaday.io page says to use Plaster of Paris. The plaster should include instructions for the amount of water to mix with it. I see on the instructions for this variation of the sensor:
Un puntillo Alambre lo arregla casi todo: Gypsum block for Soil Moisture Sensor
they say 50% plaster of paris / 50% water by volume.

I suppose the key is that the sensor has equal or lesser water retention properties than the soil. This page:
http://vanderleevineyard.com/1/post/2012/07/the-vinduino-project-2-making-and-installing-gypsum-soil-moisture-sensors.html
mentions that is a problem:

the sensor quickly responds to a moisture increase, but is slow to reach equilibrium with the surrounding soil under drying conditions

I wonder if you could make the sensor more responsive by mixing something more porous into the plaster? I'm thinking perlite but maybe you could find a different relatively inert additive that provides aeration with less water retention. Maybe pumice granules. It's possible that additives would reduce the lifetime of the sensor since it may weaken the structure of the plaster. Hard to say without some tests.

5

I had another thought. What if you used an electric mixer to "whip" a lot of small air bubbles into the plaster after adding the water but before doing the casting?

6

Hello.

I made the sénsor just with two rod copper. The sensor working fine at the first time. but because of in agriculture we have a lot of chemical for nutrient so the copper rod is change rapidly and was corroded. If just use as a hand measurement equipment, I think it can working. But my system is online system so it need working day by day, every second.

So I need your experience on using it for planting, not just in the lab.

7

The instructions clearly say you need to use stainless steel.